Which U.S. presidential campaign was the first to be officially certified as carbon-neutral, offsetting all campaign travel and event emissions?

In recent years, governments worldwide have been implementing sustainability initiatives in their campaign practices. From reducing paper waste to carbon-neutral events, political campaigns are increasingly focusing on environmental responsibility. Test your knowledge about these green political initiatives and how they've shaped modern campaign strategies. This poll explores a lesser-known but significant sustainability milestone in American political campaign history.

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Barack Obama's 2008 campaign
Hillary Clinton's 2016 campaign
Al Gore's 2000 campaign
Bernie Sanders' 2020 campaign